单选题Before hydraulic starting of an engine on a covered lifeboat，what need NOT be checked?（）AFuel supply line valveBPressure registered on the accumulator gaugeCCold-spark voltage readings test lampDEngine stop control
单选题
Before hydraulic starting of an engine on a covered lifeboat，what need NOT be checked?（）
A
Fuel supply line valve
B
Pressure registered on the accumulator gauge
C
Cold-spark voltage readings test lamp
D
Engine stop control
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